The 6-520315-2: Rated for 25 mating cycles — this is a low-duty rating. The tin-plated contact finish is economical for infrequent reconnections; in a production harness that mates once and stays, the cycle count is not a limiting factor.
Accepts FFC or FPC cable with a thickness range of 0.13mm to 0.38mm. The contact type is vertical, 1-sided — the cable conductor pattern must align with the contact side. Kinked pin termination through the PCB hole provides mechanical retention during soldering; the kink prevents the pin from backing out before the solder joint solidifies.